1/4 mile times?

Originally Posted by Fuzz

How many bikes weigh 1.5 tonnes? Im sorry but weight has everything to do with it - to do 170mph you have to start from 0. If you don't have the power to accelerate 1500kg to 170mph, you'll never get there unless dropped from a plane.

It's not just the bike you have to think about; do you still perfectly still and rigid while you're onboard? The shape of the car does not alter, the shape of the combined bike/rider does.

The weight affects rolling resistance, but that's less that 10% of the equation, and FYI: a car with 200bhp weighing 1000kg will have a maximum very close to an otherwise identical one weighing 2000kg.

The weight determines how quickly the high speeds are achieved, and has much much less effect on how high that top speed is.

If it were not for wind resistance/drag, it would be (excluding the small part that rolling resistance plays, something that increasing tyre pressures can largely overcome), just as easy to accelerate from 100mph to 110mph as it is to accelerate from 0mph to 10mph. You need the power to overcome the wind resistance/drag, not to accelerate the mass of the car.

So no, weight does not have everything to do with top speeds, but of course plays a big part in 1/4 mile times.